How can developers leverage PHP 7.4 features to improve code readability and maintainability in object-oriented programming?

Developers can leverage PHP 7.4 features like arrow functions, typed properties, and spread operator to improve code readability and maintainability in object-oriented programming. Arrow functions can make code more concise and easier to read, typed properties can enforce data types and improve code predictability, and the spread operator can simplify array manipulation tasks.

class User {
    public int $id;
    public string $name;
    
    public function __construct(int $id, string $name) {
        $this->id = $id;
        $this->name = $name;
    }
}

$user = new User(1, "John Doe");
echo "User ID: {$user->id}, Name: {$user->name}";